formation_rule in ASCII_​LID

Name: formation_ruleVersion Id:
Description: The formation_rule attribute provides a 'user friendly' instruction for forming values.
Namespace Id: pdsSteward: pdsClass Name: ASCII_​LIDType: ASCII_​Short_​String_​Collapsed
Minimum Value: NoneMaximum Value: NoneMinimum Characters: 1Maximum Characters: 255
Unit of Measure Type: NoneDefault Unit Id: NoneAttribute Concept: NoneConceptual Domain: Short_String
Status: ActiveNillable: falsePattern: None
Permissible Value(s)ValueValue Meaning
 urn:xxx:yyy:zzzzThe logical identifier is formed by concatenating "urn", "xxx" (e.g., nasa), and "yyy" (e.g., pds) with an identifer (represented by "zzzz") chosen by the data provider. Colons separate the fields. Rules for forming logical identifiers are given in the PDS4 Standards Reference section "Logical Indentifier".